Leather-blacking machine.



'No. 883,438. PATENTED MAR. 31, 1908.

' L. WIMMER.

LEATHER BLAGKING MACHINE.

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PAT'ENTED MAR."31,-1908. L. WIMMER.

' LEATHER BLAGKING MACHINE APPLICATION FILED m 25, 1907.

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v L. WIMMER.

LEATHER BLAOKING MACHINE.

APPLICATION FILED MAY 25, 1907.

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ATTORNEY.

UNITED STATES PiiTENT OFFICE.

LOUIS WIMMER, OF ELIZABETHPORT, NEW JERSEY, ASSIGNOR OF ONE-THIRD TO SAMUEL LEVENSON, OF ELIZABETH, NEW JERSEY, AND ONE-THIRD TO ABRAHAM MARX, OF NEW- ARK, NEW JERSEY.

Specification of Letters Patent.

Patented March 31, 1908.

Application filed May 25, 1907. Serial No. 375,613.

T 0 all whom it may concern:

Be it known that I, LOUIS WIMMER, a citizen of the United States, residing at Elizabethport, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Leather-Blacking Machines, of which the following is a specification.

The objects of the invention are to enable the blacking'of leather to be effectually accomplished with great facility; to obtain a highly finished product of great permanency or durability, and to save time, labor and expense in producing it; to this end to provide a machine in which different sets of brushes for applying different dressings are arranged contiguous to a cylinder over which the leather passes; to thus secure closely successive applications of the different dressings;

to provide suitably tangential feed and dis charge boards for said cylinder, and to obtain other advantages and results as may be brou ht out in the following description.

Aslde from blackening leather, the invention may be employed for coloring, staining, gumming, pasting, seasoning or finishing leather by the application of any known dressings, and although I have for purpose of illustration shown a blacking machine, and so refer to the invention herein, I do not wish to be understood as limiting myself thereby except as the state of the art may require.

Referrin to the accompanying drawings,

' in which 1' re numerals of reference indicate corresponding parts in each of the several figures, Figure 1 is a side elevation of a machine of my improved construction, through which the leather passes from left to right as viewed in the drawings; Fig. 2 is a plan of the same; Fig. 3 is a vertical longitudinal section taken on line 00, Fig. 2, looking in the direction indicated by the arrow, and Fig. 4 is an elevation of the machine from the side op osite that shown in Fig. 1.

11 said drawings, 1 indicates a bed plate, with side frames 2, 3 of any suitable construction adapted to support the working parts of my machine mounted thereon. A driving shaft 4 journaled in said side frames 2, 3, projects at one side of the machine to receive fast and loose pulleys 6 and 7, and carries between the side frames a cylinder 8 keyed to the said shaft 4. Alsoupon the other end of this shaft 4 outside the side frame 3, a large gear 9 is mounted to rotate loose upon the shaft, being held against slipping off by a collar 10. The said gear 9 is driven by a smaller gear 11 mounted on a shaft 12 transversely journaled in the side frames 2, 3, and adapted to be driven by fast and loose pulleys 13, 14.

At the rear of the machine, or left-hand end as shown in Figs. 1, 2 and 3, is a feed board 15, and at the front or opposite end of the machine is a discharge board 16. Each of these boards is arranged between the side frames 2, 3 of the machine, and is mounted thereupon, as by brackets 17, (or 18), and cross-braces 19, (or 20), extending transversely from one side frame to the other; furthermore, each board inclines or slants downwardly away from the cylinder 8, to which its upper edge is adjacent. Said feed and discharge boards are thus tangent to the upper part of the cylinder, and form with said upper part a ridge or rounded edge over which the leather is adapted to pass, it being remembered that the cylinder rotates in the direction shown by the arrow. Adjacent to the upper part of this ridge, or in other words, to the surface of the cylinder 8, between the feed and discharge boards, are arranged a plurality of sets of brushes for applying the desired dressings or blacking to the leather, said brushes and their associated parts extending longitudinally of the cylinder and being mounted in or upon the side frames 2, 3 of the machine. In the blacking machine shown, the first of these sets of brushes, or one nearest the rear of the machine, is for applying the sig or first coating to the leather, and comprises a supply pan 21, a supplying roller 22 dipping at its lower part into said pan, an applying brush 23 in suitable contact with said supply roller 22 to receive sig therefrom and adapted to also engage a piece of leather passing over the cylinder 8 to apply said sig thereto, and a rubbing-in brush 24, adapted to subsequently engage the leather to thoroughly work said sig into the pores of the leather. The second or foremost set of brushes is for applying the finishing coat of black, varnish or other dressing to the leather, and comprises a supply pan 25, supplying roller 26, applying brush 27, and rubbing-in brush 28, al said parts being similar to, and arranged in the same relation as, the corresponding parts described in detail in connection with the first set.

Preferably, the surfaces of the supply rollers 22 and 26 are provided with pockets or recesses 29 drilled therein, to facilitate their furnishing an ample quantity of dressing to the respective brushes. Power may be transmitted to the said rotating brushes 23, 24, 27 and 28 by pinions 30, 31, 32 and 33, arranged on the respective shafts of said brushes and driven by the said large gear 9. Likewise the supply-rollers, 22 and 26,"are rotated by large pinions 34 and 35, respec tively, mounted on the shafts thereof at the opposite side of the machine from the pinions and large gear just mentioned, and meshing with small pinions 36 and 37, re spectively, on the shafts of the next adjacent brushes. It is obvious that the'said rollers 22 and 26 will therefore rotate slower than "the said applying-brushes, which further insures'a suflicient amount of dressing being supplied to the brushes.

The gears and pinions herein described are of the long-toothed type, and the shafts of "the rotary brushes and rollers as'well as the shaft 4 of the cylinder, are j ournaledin sliding boxes or bearings, so that all said parts can be adjusted toward one another as the brushes wear or to secure increased pressure whendesired. The adjustments of my improved machine are so numerous and so effective that its work may be adapted to any kind of leather.

The sig' or black may be strained to remove 'any dirtt'herefrom before it is applied-to the leather, and to this end I have provided certain'strainers 38 and 39, inthe supply pans 21 and 25, respectively.

The cylinder 8 rotates with comparative slowness, while the rotary brushes move at a comparatively high speed'to insure a positive and substantial application'of the different liquors employed. In operation the leather travels with the cylinder and conforms in shape to the periphery of'the same at'the top thereofybut the two sets of brushes are arranged on opposite sides of said top, one adjacent toeach of the boards '15 and 16 and at that point of the cylinder to 'which said board is tangent. This enables "the bending of the leather totake place between the two sets of brushes, and said 'br'u'shes to operate on portions of the leather which are practically flat. Furthermore, as'the second or finishing coat is also applied before the pores are closed, either by straightening the leather or by drying and hardening of the sig, a more perfect and permanent finish is secured.

Having thus described my invention, what I claim as new is:

1. In a leather blacking'machine, the combination of a cylinder, brushes arranged along the outer surface of said'cylinder forming therewith a passage-way for the leather, a

' large gear mounted in axial alinement with said cylinder, pinions upon said brushes meshing with said gear, and means for independently driving said cylinder and large gear.

- 2. The combination of the cylinder, brushes arranged parallel to said cylinder adjacent to its outer surface and forming therewith a passage-way, a large gear in axial alinement with said cylinder, pinions upon the brushes meshing with said gear, supply rollers each adjacent to one ofsaid brushes and driven therefrom, and means :for independently driving said cylinder and large gear.

3. The combination with the cylinderland means for rotating the same, of brushesform-g ing with said cylinder a passage-way,- pinions 'on' said brushes, a common driving. gear for all said pinions, supply rollers each adjacent to oneof said brushes, and means'for driving said rollers fromsaid brushes" at their 'ends33 opposite those having the said pinions.

4. In a leather blackingmachine; the combination with a cylinder and means for r'otating the same, of'rotary' brushes arrangedvadacent to said cylinder and'formingtherewithijgo a passage-way for the leather,- a common driving member I adapted to rotate-said brushes at a higher speed than that atwhich the surface of the" cylinder moves, supply rollers each adjacent-to one of'said br-ushesf ig means for driving each supply roller fromits "adjacent brush at a slower rate'ofspeed,

means for adjusting said brushes with respect to the cylinder, andmeans for adjusting said rollers" with respect to the brushes.

ETQIOO 5. In a leather blacking machine-, thecombination of a cylin'der, 'tangential feedand discharge boards'inclined downwardly away from opposite sides 'ofthe cylinder atpoints near its top and including between them-fif o5 selves a portion ofthe cylinder surface forming a platen for the le'ather'to travel over, a plurality of sets of brushes arranged in series adjacent-to the outer surface of said platen and adapted to apply different coating sue-33110 eessively to the leather, said sets being on opposite sides of the top of the cylinder and closely contiguous one'to each of the said tangential boards, and means for rotating said cylinder and brushes. 3.3115

6. In a leather blacking machine, the=com bination of a cylinder, tangential feedand discharge boards inclined downwardly away from opposite sides of the cylinder at points near its top and includingbetween them-71.1120 selves a portion of the cylinder surface forming a platen for'the leather totravel'over, a plurality of sets of brushes arranged in series adjacent to the" outer surface of said platen and adapted to apply different coating suecessively to the leather said sets being On'opposite sides of the top of the cylinderand closely contiguous one to each of the "said tangential boards, a large gear mountedin axial alinement with the cylinder, pinions'on leo the brushes meshing with said gear, means for independently drawing said cylinder and large gear, and means for adjusting said cylinder and brushes toward and away from 5 each other.

7. The combination of the cylinder, a plurality of sets of rotary brushes arranged in series adjacent to the outer surface of said cylinder forming therewith a passage-way 10 and adapted to apply different coatings successively to the leather, means for rotating said cylinder and brushes, and means for adjusting either said cylinder or said brushes with respect to the other and independent thereof.

LOUIS WIMMER.

Witnesses:

RUssELL M. EVERETT, ETHEL B. REED. 

